化学
萃取(化学)
芳香
固相微萃取
气味
嗅觉测定
色谱法
气相色谱-质谱法
科瓦茨保留指数
气相色谱法
食品科学
质谱法
有机化学
作者
Yu Zhang,Jingwen Luo,Zeng Fan-kun
标识
DOI:10.1111/1750-3841.15790
摘要
Abstract Peony ( Paeonia section Moutan DC.) seed oil is a novel vegetable oil with unique aromatic profile. The objectives of this study were to characterize the volatile compounds with optimized analysis conditions, and to study the effects of oxidation during storage. The Headspace Solid‐phase Micro‐extraction (HS‐SPME) conditions were optimized with factors including extraction fiber, extraction time and temperature, as well as sample amount and desorption time. Then, the aromatic compounds extracted from peony seed oil were determined using the odor activity value (OAV) method coupled with the GC‐olfactometry. Results found that the best HS‐SPME conditions were DVB/CAR/PDMS fibers with magnetic stirring for 50 min of extraction at 60°C. The optimal sample amount was 4 g with 6 min of desorption. Forty‐one volatile components were found, and 19 aromatic components were identified using GC‐MS and GC‐olfactometry. This is the first study to describe 4,7‐dimethylbenzofuran in peony seed oil with a unique aroma of grass, light bitter, and fragrance. The stability of alcohol and terpenoids decreased as accelerated oxidation progresses. This study provides the theoretical basis for the sensory attributes, and shelf‐life of peony seeds oil products for industry production and marketing.
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